natcher



UNITED sTATEs PATENT oEEIoE.

G. NATGHER, OF INDIANAPOLIS, INDIANA.

MILLSTONE-DRESS.

To all whom it 'may concern:

Be it known that I, GABRIEL NATGHER, of Indianapolis, in the county ofMarion and State of Indiana, have invented a new and useful Mode ofApplying the Diamond t0 the Dress of Millstones; and I do hereby declarethat the following is a full, clear7 and exact description of the same,reference being had to the accompanying drawing, making part of thisspecication, and to the letters of reference marked thereon.

Figure l is a perspective view showing the inst-rument and mode ofoperating the same. Fig. 2, is a view of the instrument.

The nature and use of Iny discovery is seen in the fact that by thisinstrument I am enabled to produce the brack upon the face of the stonein perfect and parallel lines without disintegrating or detonizing thequality of the stone. The corner or side of the line or crack beingperfectly sharp and Specification of Letters Patent No. 205084, datedApril 27, 1858.

hard, experiment has shown that a stone dressed by this instrument willremain sharp during a much longer period, than when dressed by any otherinstrument, doing six or seven times the amount of work which will dulla stone dressed upon any of the old or ordinary plans of dressing withpicks.

The lines are produced parallel to each other by running the instrumentby the side lof a ruler of the form to give the required ine.

What I claim as my invention and desire to secure by Letters Patent is-The application of the diamond in the production of the small lines inany required form upon the face of mil1-stones for dressing the same.

GABRIEL NATCHER. Witnesses:

I-I. W. ELLSWORTH, WM. S. HUBBARD.

